EP1427658B1 - Verfahren und vorrichtung zum komprimieren von faserkörpern - Google Patents

Verfahren und vorrichtung zum komprimieren von faserkörpern Download PDF

Info

Publication number
EP1427658B1
EP1427658B1 EP02768257A EP02768257A EP1427658B1 EP 1427658 B1 EP1427658 B1 EP 1427658B1 EP 02768257 A EP02768257 A EP 02768257A EP 02768257 A EP02768257 A EP 02768257A EP 1427658 B1 EP1427658 B1 EP 1427658B1
Authority
EP
European Patent Office
Prior art keywords
support
conveying track
compression
regions
perforations
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP02768257A
Other languages
English (en)
French (fr)
Other versions
EP1427658A1 (de
Inventor
Claes GÖRANSSON
Gunnar Edwardson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Essity Hygiene and Health AB
Original Assignee
SCA Hygiene Products AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SCA Hygiene Products AB filed Critical SCA Hygiene Products AB
Publication of EP1427658A1 publication Critical patent/EP1427658A1/de
Application granted granted Critical
Publication of EP1427658B1 publication Critical patent/EP1427658B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/15577—Apparatus or processes for manufacturing
    • A61F13/15617—Making absorbent pads from fibres or pulverulent material with or without treatment of the fibres
    • A61F13/15626—Making fibrous pads without outer layers
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
    • D04H1/732—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by fluid current, e.g. air-lay
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
    • D04H1/736—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged characterised by the apparatus for arranging fibres

Definitions

  • the present invention relates to a method of compressing fibrous bodies which are held in place on a perforated support by means of negative pressure, and to an arrangement for implementing the method.
  • absorbent articles such as diapers, incontinence pads, sanitary towels, panty liners and the like
  • fluff pulp is supplied to a mat former or the like and is given the desired shape.
  • the shaped pulp body is then compressed so as to obtain the desired absorption properties.
  • the pulp bodies are often conveyed on perforated conveying tracks and are held in place on the conveying tracks by means of negative pressure (see, for example, US 4,753,693).
  • the object of the present invention is to eliminate completely the risk of blocking of the perforations in the support when pulp bodies are compressed.
  • this object is achieved by means of a method of compressing fibrous bodies which are held in place on a perforated support by means of negative pressure having the features of claim 1.
  • Each fibrous body to be compressed is first arranged on a first support which comprises parts with and without perforations within the region covered by the fibrous body, a first compression of the fibrous body is brought about in those portions thereof which cover the part or parts without perforations of the first support, the partly compressed fibrous body is then transferred to a second support which comprises perforations in the part or parts covered by compressed portions of the fibrous body but is without perforations within one or more parts covered by uncompressed portions of the fibrous body, a second compression of the fibrous body is brought about when the latter is placed on the second support in those portions of the body which cover the part or parts without perforations of the second support, after which, if required, similar compression steps are repeated until all portions to be compressed of the fibrous body have been compressed.
  • the supports consist of running conveying tracks, and the fibrous bodies are retained on the first support in two lateral regions extending in the running direction and are retained on the second support in a central region extending in the running direction.
  • the invention also relates to an arrangement for compressing fibrous bodies having the features of claim 3, said arrangement comprising a first conveying track which is perforated in one or more regions extending in the running direction of the conveying track and interacts with one or more vacuum boxes so that a negative pressure is formed on the: load-carrying side of the conveying track in its perforated region or regions, a first compression arrangement through which the first conveying track runs and which is arranged so as to compress a body conveyed on the first conveying track in those parts of the body which are located in unperforated regions of the first conveying track, a second conveying track which is perforated in one or more regions extending in the running direction of the conveying track, which regions correspond in the transverse direction to the unperforated regions of the first conveying track, and interacts with one or more vacuum boxes so that a negative pressure is formed on the load-carrying side of the second conveying track in its perforated region or regions, and a second compression arrangement through which the second conveying track runs and which is
  • the first and second compression arrangements consist of compression rollers
  • the first and second conveying tracks consist of transfer wheels.
  • the compression arrangement shown in Figures 1 and 2 comprises a first transfer wheel 1, a first compression roller 2 interacting with the transfer wheel 1, a second transfer wheel 3 and a compression roller 4 interacting with the transfer wheel 3.
  • the directions of rotation of the transfer wheels and the compression rollers interacting with these are indicated by arrows in Figure 1.
  • the transfer wheels 1 and 3 comprise in a customary manner perforated or holed peripheral surfaces and stationary vacuum boxes 5, 6 which, in the circumferential direction, extend over that region of the circumference of the wheel through which pulp bodies are conveyed and are retained against the peripheral surface by means of the negative pressure generated by means of the vacuum box.
  • the peripheral surface of the transfer wheel 1 has a central region 7 without holes or perforations, which, in the circumferential direction, extends around the entire periphery of the transfer wheel, while the regions 8 outside the central region 7 are provided with a pattern of holes 9 extending around the entire periphery of the transfer wheel.
  • the pattern consists of a row of individual holes 9 but the pattern can also consist of a number of parallel rows of holes, and the rows can also be displaced in the circumferential direction relative to one another.
  • the individual holes can have any shape and can also be provided with netting which divides each individual hole 9 into a number of smaller holes.
  • the individual holes suitably have an area of 3-20 mm 2 , and the open area of the regions 8 should lie between 2 and 25%.
  • the first compression roller 2 which interacts with the transfer wheel 1, is dimensioned and positioned in such a manner that it acts in only the central region 7 of the peripheral surface of the transfer wheel 1.
  • the second transfer wheel 3 differs from the first transfer wheel 1 in having perforations 10 in its central region 11, which corresponds to the central region 7 without perforations of the first transfer wheel 1, and being without perforations in the regions 12 lying outside the central region 11, which correspond to the perforated regions 8 of the transfer wheel 1.
  • the second transfer wheel 3 therefore has a central perforated region 11 and two lateral regions 12 without perforations. Otherwise, the transfer wheel 3 is constructed in the same manner as the transfer wheel 1.
  • the regions 7, 12 without perforations can of course be brought about on a fully perforated transfer wheel by covering these regions with a layer of an impermeable material or blocking the holes in these regions in another manner.
  • the second compression roller 4 extends axially over the entire width of the peripheral surface of the second transfer wheel 3 and has a central cutout in its central part, that is to say that part of it which extends over the width of the central region 11 of the transfer wheel 3.
  • Figure 1 also shows a mat-forming wheel 13, from which a succession of airlaid pulp bodies is deposited on the first transfer wheel 1, and a conveyor 14, on which a succession of finished compressed pulp bodies is placed and transferred to a process line (not shown) for the manufacture of absorbent articles.
  • Figure 1 also shows a precompression roller 15 which can advantageously be arranged so as to remove air from the pulp bodies before the actual compression.
  • a precompression roller can also be arranged so as to interact with the second transfer wheel 3 and is then positioned in front of the compression roller 4 in the running direction.
  • the mat-forming wheel has along its periphery a number of moulds with perforated bottoms and a vacuum box which generates a negative pressure below these bottoms as the bottoms pass by one or more mat-forming covers and onward to that point along the periphery at which the pulp bodies formed are deposited on the transfer wheel 1.
  • the mat-forming covers supply a stream of airborne pulp fibres, to which fibres or particles of superabsorbent material or bonding fibres may be added.
  • the bodies After transfer of these pulp bodies to the transfer wheel 1, the bodies are held in place on the peripheral surface of the wheel 1 by means of the negative pressure which acts on the bodies in the perforated regions 8 of the transfer wheel 1. On passing the precompression roller 15, some compression of the bodies takes place, and some air is pressed out of these. After precompression, the pulp bodies have a density of roughly 100 kg/m 3 . The bodies are then fed past the first compression roller 2, compression of the bodies taking place in their central part, which runs under the first compression roller 2.
  • the pulp bodies compressed in their central part are then transferred to the second transfer wheel 3 and, on passing the second compression roller 4, compression of the pulp bodies takes place in their lateral parts, which pass under those parts of this roller which extend outside the perforated central region 11 of the peripheral surface of the transfer wheel 3.
  • the widths of the first and second compression rollers 2 and 4 are selected so that the whole of the pulp bodies has been compressed after a pulp body has passed the second compression roller 4.
  • the width of the first compression roller 2 is preferably slightly greater than the width of the central cutout of the second compression roller 4, suitably 2 mm greater, so as to ensure that the pulp bodies are compressed over their entire width.
  • the compression of the pulp bodies is finished, and they can be supplied via the conveyor belt 14 to a material web forming part of a process line (not shown) for manufacturing absorbent articles.
  • the peripheral speed of the second transfer wheel 3 is synchronous with the feed speed in such a process line, that is to say the pulp bodies can be deposited in succession with the desired mutual spacing, the finished compressed pulp bodies can be supplied directly to the process line for manufacturing absorbent articles.
  • the pulp bodies are compressed to the same density in all their parts, that is to say the nips of the first and second compression rollers and the transfer wheels interacting therewith are the same size.
  • the nips being given different sizes so that the density in the central parts of the finished compressed pulp bodies differs from the density in lateral parts.
  • profiled rollers in order to give the pulp bodies different density in different parts.
  • the essential factor for the invention is that all compression of the pulp bodies takes place against a support which does not have holes.
  • the transfer wheels 1 and 3 and the compression rollers interacting therewith can change places.
  • additional compression steps can be performed, for example in order to produce compression lines in the pulp body formed, these compression steps also being performed in such a manner that pulp is pressed against only unperforated supports.
  • linear conveyor belts can be used instead of transfer wheels, and the method can also be applied to intermittently running conveying tracks and intermittently acting compression means.
  • a common vacuum box for the perforated lateral regions of the first transfer wheel a separate vacuum box can be provided for each perforated region.
  • the method can also be used with continuous fibrous mats, and the fibrous bodies or the fibrous mat do(es) not have to be produced by airlaying. The invention is therefore to be limited only by the content of the accompanying patent claims.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Manufacturing & Machinery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Epidemiology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Mechanical Engineering (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Nonwoven Fabrics (AREA)

Claims (5)

  1. Verfahren zum Komprimieren faserförmiger Körper, die mittels Unterdruck auf einem perforierten Träger (1, 3) in Stellung gehalten werden, wobei jeder zu komprimierende faserförmige Körper zunächst auf einem ersten Träger (1) angeordnet wird, dadurch gekennzeichnet, dass der Träger Teile mit (8) und ohne (7) Perforationen innerhalb des Bereichs, der durch den faserförmigen Körper bedeckt ist, umfasst, dadurch, dass eine erste Kompression des faserförmigen Körpers in den Abschnitten davon, die den Teil (7) oder die Teile ohne Perforationen des ersten Trägers (1) bedecken, bewirkt wird, dadurch, dass der teilweise komprimierte faserförmige Körper dann auf einen zweiten Träger (3) transferiert wird, der Perforationen in dem Teil (11) oder den Teilen umfasst, die durch die komprimierten Abschnitte des faserförmigen Körpers bedeckt ist, aber keine Perforationen in einem oder mehreren Teilen (12) aufweist, die durch unkomprimierte Abschnitte des faserförmigen Körpers bedeckt sind, dadurch, dass eine zweite Kompression des faserförmigen Körpers erfolgt, wenn letzterer auf dem zweiten Träger (3) platziert ist und zwar in den Abschnitten des Körpers, die den Teil oder Teile (12) ohne Perforation des zweiten Trägers bedecken, wonach wenn erforderlich ähnliche Kompressionsschritte wiederholt werden, bis alle zu komprimierenden Abschnitte des faserförmigen Körpers komprimiert wurden.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Träger aus einer laufenden Förderbahn (1, 3) bestehen und dadurch, dass die faserförmigen Körper auf dem ersten Träger (1) in zwei seitlichen Bereichen (8), die sich in Laufrichtung erstrecken, gehalten werden und dass sie auf dem zweiten Träger (3) in einem Mittelbereich (11), der sich in Laufrichtung erstreckt, gehalten werden.
  3. Anordnung zum Komprimieren faserförmiger Körper, umfassend eine erste Förderbahn (1), die in einem oder mehreren Bereichen (8), die sich in Laufrichtung der Förderbahn erstrecken, perforiert ist und mit einer oder mehreren Vakuumboxen (5) zusammenwirkt, so dass ein Unterdruck auf der Last tragenden Seite der Förderbahn in ihrem perforierten Bereich oder Bereichen erzeugt wird und eine erste Kompressionsanordnung (2), durch die die erste Förderbahn (1) läuft, dadurch gekennzeichnet, dass die erste Förderbahn (1) derart angeordnet ist, dass sie den auf der ersten Förderbahn geförderten Körper in den Teilen des Körpers komprimiert, die in unperforierten Bereichen (7) der ersten Förderbahn (1) angeordnet sind, wobei die Anordnung ferner umfasst: eine zweite Förderbahn (3), die in einem oder mehreren Bereichen (11), die sich in Laufrichtung der Förderbahn erstrecken, perforiert ist, welche Bereiche in der Querrichtung den unperforierten Bereichen (7) der ersten Förderbahn (1) entsprechen und die mit einer oder mehreren Vakuumboxen (6) zusammenwirkt, so dass auf der Last tragenden Seite der zweiten Förderbahn in ihren perforierten Bereich oder Bereichen 11 ein Unterdruck erzeugt wird, und eine zweite Kompressionsanordnung (4), durch die die zweite Förderbahn (3) läuft und die derart angeordnet ist, dass sie die auf der zweiten Förderbahn geförderten Körper in den Teilen des Körpers komprimiert, die in unperforierten Bereichen (12) der zweiten Förderbahn (3) angeordnet sind.
  4. Anordnung nach Anspruch 3, dadurch gekennzeichnet, dass die erste und zweite Kompressionsanordnung aus Kompressionswalzen (2, 4) besteht.
  5. Anordnung nach Anspruch 4, dadurch gekennzeichnet, dass die erste und zweie Förderbahn aus Transferwalzen (1, 3) besteht.
EP02768257A 2001-09-17 2002-09-16 Verfahren und vorrichtung zum komprimieren von faserkörpern Expired - Lifetime EP1427658B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE0103073A SE520009C2 (sv) 2001-09-17 2001-09-17 Förfarande och anordning för komprimering av fiberkroppar
SE0103073 2001-09-17
PCT/SE2002/001660 WO2003053829A1 (en) 2001-09-17 2002-09-16 Method and apparatus for compressing fibrous bodies.

Publications (2)

Publication Number Publication Date
EP1427658A1 EP1427658A1 (de) 2004-06-16
EP1427658B1 true EP1427658B1 (de) 2006-06-07

Family

ID=20285338

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02768257A Expired - Lifetime EP1427658B1 (de) 2001-09-17 2002-09-16 Verfahren und vorrichtung zum komprimieren von faserkörpern

Country Status (7)

Country Link
EP (1) EP1427658B1 (de)
JP (1) JP4387796B2 (de)
AT (1) ATE328828T1 (de)
AU (1) AU2002332212A1 (de)
DE (1) DE60212152T2 (de)
SE (1) SE520009C2 (de)
WO (1) WO2003053829A1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014098679A1 (en) 2012-12-20 2014-06-26 Sca Hygiene Products Ab Absorbent article
WO2014098677A1 (en) 2012-12-20 2014-06-26 Sca Hygiene Products Ab Absorbent article with increased comfortability
WO2014098678A1 (en) 2012-12-20 2014-06-26 Sca Hygiene Products Ab Absorbent article with increased comfortability
US8901368B2 (en) 2007-12-07 2014-12-02 Sca Hygiene Products Ab Absorbent core comprising multiple sublayers
US9248608B2 (en) 2009-10-19 2016-02-02 Unicharm Corporation Manufacturing method and manufacturing apparatus of an absorbent body

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5469994B2 (ja) 2009-10-19 2014-04-16 ユニ・チャーム株式会社 吸収体の厚みを薄くする方法、及び装置
EP2417951B1 (de) 2010-08-12 2016-12-14 Johnson & Johnson do Brasil Industria e Comercio de Produtos Para Saude Ltda. Verfahren und Vorrichtung zur Herstellung eines faserigen Artikels mit dreidimensionalem Profil und aufnahmefähiger Artikel mit dem geformten faserigen Artikel

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1474973B2 (de) * 1966-08-01 1970-08-13 Agfa-Gevaert Ag, 5090 Leverkusen Saugwalze zum Übertragen eines Drehmomentes
CH602460A5 (de) * 1976-05-20 1978-07-31 Bachofen & Meier Firma
US4753693A (en) * 1986-04-16 1988-06-28 Cumulus Fibres, Inc. Method for forming a vacuum bonded non-woven batt
SE462418B (sv) * 1988-11-15 1990-06-25 Moelnlycke Ab Saett och anordning foer att bilda en absorptionskropp
DE3843246C1 (de) * 1988-12-22 1990-05-23 J.M. Voith Gmbh, 7920 Heidenheim, De
DE19847799A1 (de) * 1998-10-16 2000-04-20 Bachofen & Meier Ag Buelach Zugwalze für bahnförmige Materialien, insbesondere für Papier- oder Kartonbahnen, Kunststoff- oder Metallfolien

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8901368B2 (en) 2007-12-07 2014-12-02 Sca Hygiene Products Ab Absorbent core comprising multiple sublayers
US9248608B2 (en) 2009-10-19 2016-02-02 Unicharm Corporation Manufacturing method and manufacturing apparatus of an absorbent body
WO2014098679A1 (en) 2012-12-20 2014-06-26 Sca Hygiene Products Ab Absorbent article
WO2014098677A1 (en) 2012-12-20 2014-06-26 Sca Hygiene Products Ab Absorbent article with increased comfortability
WO2014098678A1 (en) 2012-12-20 2014-06-26 Sca Hygiene Products Ab Absorbent article with increased comfortability

Also Published As

Publication number Publication date
JP4387796B2 (ja) 2009-12-24
SE0103073D0 (sv) 2001-09-17
JP2005513288A (ja) 2005-05-12
DE60212152D1 (de) 2006-07-20
AU2002332212A1 (en) 2003-07-09
DE60212152T2 (de) 2006-11-09
WO2003053829A1 (en) 2003-07-03
ATE328828T1 (de) 2006-06-15
SE0103073L (sv) 2003-03-18
SE520009C2 (sv) 2003-05-06
EP1427658A1 (de) 2004-06-16

Similar Documents

Publication Publication Date Title
CN101257874B (zh) 用于形成尿布中所用吸收垫的设备和方法
US5004579A (en) Methods and apparatus for selective placement of fibrous material in formed fibrous articles
JP5016039B2 (ja) エアレイド吸収コアを形成するための装置および方法
US20110042844A1 (en) Method and apparatus for forming a batt of particulate material for use as a component in an absorbent core assembly
JPS60246856A (ja) 空気集積製品を製造する装置
EP1308147A2 (de) Verfahren und Vorrichtung zur Herstellung von wegwerfbaren Kleidungsstücken
EP1427658B1 (de) Verfahren und vorrichtung zum komprimieren von faserkörpern
US6000102A (en) Apparatus for air-laying of fibrous material or granules
JP2008237381A (ja) 吸収性物品、及び、吸収性物品の製造方法
KR20110127649A (ko) 개인용 위생용품 제조를 위한 기계
KR101898898B1 (ko) 흡수성 위생용품을 위한 패딩 부분품을 제조하기 위한 방법 및 장치
US7981355B2 (en) Mat-forming wheel
PL178851B1 (pl) Urządzenie do powietrznego formowania wyrobów włóknistych
AU650046B2 (en) A method and apparatus for forming a wad
US6625853B2 (en) Method of compressing fibrous bodies
US4690853A (en) Absorbent structure containing a contoured batt
JP2000501145A (ja) 動く空気浸透性のコンベア走路上に空気運搬された繊維体をエアレイするための装置
EP0388020B1 (de) Herstellung von geschichteten Faserkissen mit abgesetztem Randbereich
EP0805664B1 (de) Verfahren zur herstellung nicht-gewebter elastischer artikel
CA2281963C (en) Deposition cavity apparatus for forming an airlaid article
CN100528113C (zh) 增强吸收制品纤维体的方法和装置以及用这种方法增强的纤维体
SE503799C2 (sv) Metod för tillverkning av en absorberande struktur samt alster innefattande en dylik struktur.
MXPA06005552A (en) A method of strenghten a fibrous body for absorbent articles

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20040205

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

17Q First examination report despatched

Effective date: 20041115

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060607

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060607

Ref country code: CH

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060607

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060607

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060607

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060607

Ref country code: BE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060607

Ref country code: LI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060607

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 60212152

Country of ref document: DE

Date of ref document: 20060720

Kind code of ref document: P

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060907

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060907

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060918

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060918

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061107

ET Fr: translation filed
NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20070308

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060908

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060907

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060607

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060607

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060916

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060607

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 15

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 16

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 17

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 60212152

Country of ref document: DE

Representative=s name: HOFFMANN - EITLE PATENT- UND RECHTSANWAELTE PA, DE

Ref country code: DE

Ref legal event code: R081

Ref document number: 60212152

Country of ref document: DE

Owner name: ESSITY HYGIENE AND HEALTH AKTIEBOLAG, SE

Free format text: FORMER OWNER: SCA HYGIENE PRODUCTS AB, GOETEBORG/GOTENBURG, SE

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20210811

Year of fee payment: 20

Ref country code: FR

Payment date: 20210812

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20210803

Year of fee payment: 20

Ref country code: GB

Payment date: 20210811

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 60212152

Country of ref document: DE

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20220915

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20220915